Thanks for these thoughts. None of these other coups had the US State Dept laid so bare as an actor than the 2014 Ukraine example. I suspect we were involved in these other examples in equivalent degree - I don’t know.
You miss my point. All of these were righteous revolts. Allende and Marcos and Yanukevych were disasters. All of them were elected, and at one time were quite popular.
Democracy often throws up disasters, and there may not be constitutional means available to correct these mistakes.